21365478720
21,365,478,720 is an even composite number composed of six prime numbers multiplied together.
21365478720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of five hundred four divisors.
Prime factorization of 21365478720:
26 × 32 × 5 × 19 × 532 × 139
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 19 × 53 × 53 × 139)See below for interesting mathematical facts about the number 21365478720 from the Numbermatics database.
Names of 21365478720
- Cardinal: 21365478720 can be written as Twenty-one billion, three hundred sixty-five million, four hundred seventy-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.136547872 × 1010
Factors of 21365478720
Divisors of 21365478720
- Number of divisors d(n): 504
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 30 32 36 38 40 45 48 53 57 60 64 72 76 80 90 95 96 106 114 120 139 144 152 159 160 171 180 190 192 212 228 240 265 278 285 288 304 318 320 342 360 380 417 424 456 477 480 530 556 570 576 608 636 684 695 720 760 795 834 848 855 912 954 960 1007 1060 1112 1140 1216 1251 1272 1368 1390 1440 1520 1590 1668 1696 1710 1824 1908 2014 2085 2120 2224 2280 2385 2502 2544 2641 2736 2780 2809 2880 3021 3040 3180 3336 3392 3420 3648 3816 4028 4170 4240 4448 4560 4770 5004 5035 5088 5282 5472 5560 5618 6042 6080 6255 6360 6672 6840 7367 7632 7923 8056 8340 8427 8480 8896 9063 9120 9540 10008 10070 10176 10564 10944 11120 11236 12084 12510 12720 13205 13344 13680 14045 14734 15105 15264 15846 16112 16680 16854 16960 18126 18240 19080 20016 20140 21128 22101 22240 22472 23769 24168 25020 25281 25440 26410 26688 27360 28090 29468 30210 30528 31692 32224 33360 33708 36252 36835 38160 39615 40032 40280 42135 42256 44202 44480 44944 45315 47538 48336 50040 50562 50880 52820 53371 54720 56180 58936 60420 63384 64448 66303 66720 67416 72504 73670 76320 79230 80064 80560 84270 84512 88404 89888 90630 95076 96672 100080 101124 105640 106742 110505 112360 117872 118845 120840 126405 126768 132606 133440 134832 139973 145008 147340 152640 158460 160113 161120 168540 169024 176808 179776 181260 190152 193344 200160 202248 211280 213484 221010 224720 235744 237690 241680 252810 253536 265212 266855 269664 279946 290016 294680 316920 320226 322240 331515 337080 353616 362520 380304 390451 400320 404496 419919 422560 426968 442020 449440 471488 475380 480339 483360 505620 507072 530424 533710 539328 559892 580032 589360 633840 640452 663030 674160 699865 707232 725040 760608 780902 800565 808992 839838 845120 853936 884040 898880 950760 960678 966720 1011240 1060848 1067420 1119784 1171353 1178720 1259757 1267680 1280904 1326060 1348320 1399730 1414464 1450080 1521216 1561804 1601130 1617984 1679676 1707872 1768080 1901520 1921356 1952255 2022480 2099595 2121696 2134840 2239568 2342706 2357440 2401695 2519514 2535360 2561808 2652120 2696640 2799460 2900160 3123608 3202260 3359352 3415744 3514059 3536160 3803040 3842712 3904510 4044960 4199190 4243392 4269680 4479136 4685412 4803390 5039028 5123616 5304240 5598920 5856765 6247216 6298785 6404520 6718704 7028118 7072320 7418569 7606080 7685424 7809020 8089920 8398380 8539360 8958272 9370824 9606780 10078056 10247232 10608480 11197840 11713530 12494432 12597570 12809040 13437408 14056236 14837138 15370848 15618040 16796760 17078720 17570295 18741648 19213560 20156112 21216960 22255707 22395680 23427060 24988864 25195140 25618080 26874816 28112472 29674276 30741696 31236080 33593520 35140590 37092845 37483296 38427120 40312224 44511414 44791360 46854120 50390280 51236160 56224944 59348552 62472160 66767121 67187040 70281180 74185690 74966592 76854240 80624448 89022828 93708240 100780560 111278535 112449888 118697104 124944320 133534242 134374080 140562360 148371380 153708480 178045656 187416480 201561120 222557070 224899776 237394208 267068484 281124720 296742760 333835605 356091312 374832960 403122240 445114140 474788416 534136968 562249440 593485520 667671210 712182624 890228280 1068273936 1124498880 1186971040 1335342420 1424365248 1780456560 2136547872 2373942080 2670684840 3560913120 4273095744 5341369680 7121826240 10682739360 21365478720
- Sum of all divisors σ(n): 79410458400
- Sum of proper divisors (its aliquot sum) s(n): 58044979680
- 21365478720 is an abundant number, because the sum of its proper divisors (58044979680) is greater than itself. Its abundance is 36679500960
Bases of 21365478720
- Binary: 100111110010111101101010101010000002
- Hexadecimal: 0x4F97B5540
- Base-36: 9TCGCW0
Squares and roots of 21365478720
- 21365478720 squared (213654787202) is 456483680934772838400
- 21365478720 cubed (213654787203) is 9752992371039158786869198848000
-
The
square root of 21365478720 is 146169.3494546651 -
The
cube root of 21365478720 is 2774.8374212033
Scales and comparisons
How big is 21365478720?- 21,365,478,720 seconds is equal to 679 years, 18 weeks, 3 days, 15 hours, 12 minutes.
-
To count from 1 to 21,365,478,720 would take you about one thousand, three hundred fifty-eight years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 21365478720 cubic inches would be around 231.2 feet tall.
Recreational maths with 21365478720
- 21365478720 backwards is 02787456312
- 21365478720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21365478720's digits is 45
- More coming soon!
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